package com.walker.infrastructure.core.domx;

import com.walker.infrastructure.core.DomParser;
import com.walker.infrastructure.utils.StringUtils;
import org.jdom2.Document;
import org.jdom2.input.SAXBuilder;
import org.xml.sax.InputSource;

import java.io.InputStream;
import java.io.StringReader;

public class Jdom2Parser implements DomParser<Document> {

    @Override
    public Document getDocumentFromXml(String xml) {
        if (StringUtils.isEmpty(xml)) {
            return null;
        }
        SAXBuilder builder = new SAXBuilder();
        StringReader read = new StringReader(xml);
        InputSource source = new InputSource(read);
        try {
            Document document = builder.build(source);
            return document;
        } catch (Exception e) {
            throw new RuntimeException("异常，getDocumentFromXml：" + xml, e);
        } finally {
            read.close();
        }
    }

    @Override
    public Document getDocumentFromStream(InputStream inputStream) {
        SAXBuilder saxBuilder = new SAXBuilder();
        try {
            Document document = saxBuilder.build(inputStream);
            return document;
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }

    @Override
    public boolean isSupported(Class<Object> clazz) {
        return false;
    }
}